A few of our favorite things are still on sale, like laptops, soundbars, air purifiers, and more.
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32 Best Camping and Outdoors Deals for Amazon Prime Day (Day 2)
Prep yourself for summer with these Prime deals on camping gear, hiking gear, fitness trackers, biking accessories, and more.
Blurred Satellite Images Make Rebuilding Palestine Harder
Digital researchers and aid groups say free mapping tools like Google Earth are too imprecise.
How Astrophotographers Shoot (Very) Long Exposures
If you’ve viewed deep-sky astrophotos (not landscape astrophotos), you may have noticed that extremely long exposures (not counting mosaics) are used. In extreme cases, exposures may run over 12 hours. Unless you have a space telescope, it should be obvious that multiple exposures have been used.
